LangChain使用

1.安装依赖

1. conda create -n langchain python=3.12
2. conda activate langchain
3. conda install langchain
4. pip install langchain-community
5. pip install langchain-core
6. pip install "langserve[all]"
7. pip install langchain-cli
8. pip install langsmith
9. pip install "unstructured[md]"
10. pip install sentence-transformers
11. pip install langchain-ollama
12. pip install langchain_huggingface
13. pip install langchain_chroma
14. pip install flask

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2.下载模型

1. export HF_ENDPOINT=https://hf-mirror.com
2. huggingface-cli download BAAI/bge-m3
4. curl -fsSL https://ollama.com/install.sh | sh
5. ollama serve
6. ollama run deepseek-r1:8b

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